BEGIN { # we need to know (usual) packet size to convert byte numbers # to packet numbers if (packetsize <= 0) packetsize = 512 } \$5 !~ /[SR]/ { # print out per-packet data in the form: # # # <1st send time> # # <1st ack time> # # <# sends> # <# acks> n = split (\$1,t,":") tim = t[1]*3600 + t[2]*60 + t[3] if (\$6 != "ack") { i = index(\$6,":") strtSeq = substr(\$6,1,i-1) id = 1.5 + (strtSeq - 1) / packetsize id -= id % 1 if (maxId < id) maxId = id if (firstSend[id] == 0) { firstSend[id] = tim seqNo[id] = strtSeq } lastSend[id] = tim timesSent[id]++ totalPackets++ } else { id = 1 + (\$7 - 2) / packetsize id -= id % 1 timesAcked[id]++ if (firstAck[id] == 0) firstAck[id] = tim lastAck[id] = tim totalAcks++ } } END { print "# " maxId " chunks. " totalPackets " packets sent. " \ totalAcks " acks." # for packets that were implicitly acked, make the ack time # be the ack time of next explicitly acked packet. for (i = maxId-1; i > 0; --i) while (i > 0 && firstAck[i] == 0) { lastAck[i] = firstAck[i] = firstAck[i+1] --i } tzero = firstSend[1] for (i = 1; i <= maxId; i++) printf "%d\t%d\t%.2f\t%.2f\t%.2f\t%.2f\t%d\t%d\n",\ i, seqNo[i], \ firstSend[i] - tzero, lastSend[i] - tzero,\ firstAck[i] - tzero, lastAck[i] - tzero,\ timesSent[i], timesAcked[i] }